Layers of the Earth Flash Cards
What is the third layer of the Earth? What is the state of matter of this layer?
The ASTHENOSPHERE is SEMI-SOLID.
What is the fourth layer of the Earth? What is the state of matter of this layer?
The MANTLE (lower) is SOLID.
What is the fifth layer of the Earth? What is the state of matter of this layer?
The OUTER CORE is LIQUID.
What is the sixth layer of the Earth? What is the state of matter of this layer?
The INNER CORE is SOLID.
What is the least dense layer of the Earth? What is the pressure and temperature of the layer?
The CRUST is the layer that is the LEAST DENSE and has the LOWEST TEMPERATURE.
What is the most dense layer of the Earth? What is the pressure and temperature of the layer?
The INNER CORE is the layer that is the MOST DENSE and has the HIGHEST TEMPERATURE.
What parts are the crust split into?
Oceanic Crust and Continental Crust.
What is the first layer of the Earth? What is the state of matter of this layer?
The CRUST is SOLID.
What are the lithospheric plates made of?
Some of the Earth’s continental crust and mantle.
Why does molten rock move? Why?
Density which is caused by temperature change. Cooler areas are more dense and hotter areas are less dense.
Where does heat travel from?
The inner core
Where in the mantle is the cooler rocks and the hotter rocks?
Hotter Rocks:
Lower area
Cooler Rocks:
Higher area
How do convection currents form? What direction does it move?
- The molten rock comes to a warm area where density decreases.
- Due to the density decrease, the molten rock rises up.
- When it reaches high enough, the currents cool and the density increases due to lower temperature.
- Because the currents cool, the molten rock starts to come down
and the process starts again.
Currents move LEFT.
Draw a model of the Earth.
Check the answer sheet.
Image from http://oceansjsu.com/images/exp5_interior_earth.gif.
Test on the image.
Check the answer sheet.
